./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/counting-bits-set.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/counting-bits-set.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0da38f7c0587f92bfa337016cd7efdda7fd5b8088b9cf2496e9fffda1f39f4b4 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:42:09,378 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:42:09,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:42:09,438 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:42:09,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:42:09,440 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:42:09,442 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:42:09,445 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:42:09,448 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:42:09,449 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:42:09,451 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:42:09,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:42:09,453 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:42:09,455 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:42:09,461 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:42:09,466 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:42:09,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:42:09,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:42:09,477 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:42:09,486 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:42:09,488 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:42:09,496 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:42:09,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:42:09,499 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:42:09,505 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:42:09,512 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:42:09,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:42:09,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:42:09,520 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:42:09,532 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:42:09,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:42:09,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:42:09,535 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:42:09,536 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:42:09,537 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:42:09,538 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:42:09,539 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:42:09,539 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:42:09,539 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:42:09,540 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:42:09,541 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:42:09,543 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-10-17 10:42:09,575 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:42:09,575 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:42:09,583 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:42:09,583 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:42:09,584 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:42:09,584 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:42:09,585 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:42:09,585 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-10-17 10:42:09,585 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-10-17 10:42:09,585 INFO L138 SettingsManager]: * Use old map elimination=false [2022-10-17 10:42:09,585 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-10-17 10:42:09,585 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-10-17 10:42:09,586 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-10-17 10:42:09,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:42:09,586 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:42:09,586 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:42:09,586 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:42:09,587 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-10-17 10:42:09,587 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-10-17 10:42:09,587 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-10-17 10:42:09,587 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:42:09,587 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-10-17 10:42:09,588 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:42:09,588 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-10-17 10:42:09,588 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:42:09,588 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:42:09,589 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:42:09,589 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:42:09,590 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-10-17 10:42:09,590 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0da38f7c0587f92bfa337016cd7efdda7fd5b8088b9cf2496e9fffda1f39f4b4 [2022-10-17 10:42:09,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:42:09,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:42:09,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:42:09,906 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:42:09,907 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:42:09,909 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/termination-bwb/counting-bits-set.i [2022-10-17 10:42:09,983 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/data/9d76cfe38/d8a145414282440fac77a092a420b169/FLAG63a116436 [2022-10-17 10:42:10,507 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:42:10,508 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/sv-benchmarks/c/termination-bwb/counting-bits-set.i [2022-10-17 10:42:10,514 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/data/9d76cfe38/d8a145414282440fac77a092a420b169/FLAG63a116436 [2022-10-17 10:42:10,842 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/data/9d76cfe38/d8a145414282440fac77a092a420b169 [2022-10-17 10:42:10,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:42:10,847 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:42:10,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:42:10,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:42:10,866 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:42:10,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:42:10" (1/1) ... [2022-10-17 10:42:10,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a734a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:10, skipping insertion in model container [2022-10-17 10:42:10,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:42:10" (1/1) ... [2022-10-17 10:42:10,879 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:42:10,893 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:42:11,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:42:11,092 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:42:11,107 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:42:11,121 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:42:11,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:11 WrapperNode [2022-10-17 10:42:11,122 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:42:11,123 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:42:11,123 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:42:11,124 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:42:11,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:11" (1/1) ... [2022-10-17 10:42:11,138 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:11" (1/1) ... [2022-10-17 10:42:11,157 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 34 [2022-10-17 10:42:11,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:42:11,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:42:11,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:42:11,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:42:11,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:11" (1/1) ... [2022-10-17 10:42:11,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:11" (1/1) ... [2022-10-17 10:42:11,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:11" (1/1) ... [2022-10-17 10:42:11,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:11" (1/1) ... [2022-10-17 10:42:11,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:11" (1/1) ... [2022-10-17 10:42:11,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:11" (1/1) ... [2022-10-17 10:42:11,179 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:11" (1/1) ... [2022-10-17 10:42:11,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:11" (1/1) ... [2022-10-17 10:42:11,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:42:11,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:42:11,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:42:11,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:42:11,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:11" (1/1) ... [2022-10-17 10:42:11,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:42:11,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:42:11,226 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:42:11,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-10-17 10:42:11,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:42:11,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:42:11,356 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:42:11,360 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:42:11,541 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:42:11,549 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:42:11,558 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 10:42:11,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:42:11 BoogieIcfgContainer [2022-10-17 10:42:11,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:42:11,562 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-10-17 10:42:11,563 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-10-17 10:42:11,568 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-10-17 10:42:11,569 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:42:11,569 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.10 10:42:10" (1/3) ... [2022-10-17 10:42:11,571 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@688442fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:42:11, skipping insertion in model container [2022-10-17 10:42:11,571 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:42:11,571 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:11" (2/3) ... [2022-10-17 10:42:11,572 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@688442fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:42:11, skipping insertion in model container [2022-10-17 10:42:11,572 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:42:11,572 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:42:11" (3/3) ... [2022-10-17 10:42:11,574 INFO L332 chiAutomizerObserver]: Analyzing ICFG counting-bits-set.i [2022-10-17 10:42:11,636 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-10-17 10:42:11,637 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-10-17 10:42:11,637 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-10-17 10:42:11,637 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-10-17 10:42:11,637 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-10-17 10:42:11,638 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-10-17 10:42:11,638 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-10-17 10:42:11,638 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-10-17 10:42:11,643 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:42:11,663 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-10-17 10:42:11,663 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:42:11,664 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:42:11,670 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-10-17 10:42:11,671 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-10-17 10:42:11,671 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-10-17 10:42:11,671 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:42:11,673 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-10-17 10:42:11,673 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:42:11,673 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:42:11,674 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-10-17 10:42:11,674 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-10-17 10:42:11,683 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~c~0 := 0;~z~0 := 0;~y~0 := 0; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 15#L12true assume ~v~0 >= 0;~c~0 := 0; 5#L13-3true [2022-10-17 10:42:11,683 INFO L750 eck$LassoCheckResult]: Loop: 5#L13-3true assume !!(0 != ~v~0); 6#L15true assume 0 == ~v~0;~z~0 := 0; 12#L15-8true ~c~0 := ~c~0 + ~z~0; 13#L13-2true ~v~0 := ~v~0 / 2; 5#L13-3true [2022-10-17 10:42:11,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:11,690 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2022-10-17 10:42:11,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:11,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030889793] [2022-10-17 10:42:11,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:11,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:11,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:42:11,790 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:42:11,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:42:11,815 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:42:11,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:11,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1327302, now seen corresponding path program 1 times [2022-10-17 10:42:11,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:11,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971952466] [2022-10-17 10:42:11,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:11,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:11,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:11,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:42:11,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:42:11,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971952466] [2022-10-17 10:42:11,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971952466] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:42:11,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:42:11,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:42:11,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796360197] [2022-10-17 10:42:11,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:42:11,900 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:42:11,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:42:11,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:42:11,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:42:11,937 INFO L87 Difference]: Start difference. First operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:42:11,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:42:11,973 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2022-10-17 10:42:11,975 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 22 transitions. [2022-10-17 10:42:11,977 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-10-17 10:42:11,980 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 10 states and 13 transitions. [2022-10-17 10:42:11,982 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-10-17 10:42:11,982 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-10-17 10:42:11,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2022-10-17 10:42:11,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:42:11,984 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2022-10-17 10:42:12,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2022-10-17 10:42:12,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-10-17 10:42:12,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:42:12,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2022-10-17 10:42:12,014 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2022-10-17 10:42:12,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:42:12,020 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2022-10-17 10:42:12,020 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-10-17 10:42:12,020 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2022-10-17 10:42:12,021 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-10-17 10:42:12,021 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:42:12,021 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:42:12,022 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-10-17 10:42:12,022 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-10-17 10:42:12,022 INFO L748 eck$LassoCheckResult]: Stem: 47#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~c~0 := 0;~z~0 := 0;~y~0 := 0; 48#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 52#L12 assume ~v~0 >= 0;~c~0 := 0; 49#L13-3 [2022-10-17 10:42:12,023 INFO L750 eck$LassoCheckResult]: Loop: 49#L13-3 assume !!(0 != ~v~0); 50#L15 assume !(0 == ~v~0); 51#L15-2 assume 1 == ~v~0;~z~0 := 1; 44#L15-8 ~c~0 := ~c~0 + ~z~0; 46#L13-2 ~v~0 := ~v~0 / 2; 49#L13-3 [2022-10-17 10:42:12,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:12,024 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 2 times [2022-10-17 10:42:12,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:12,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520477438] [2022-10-17 10:42:12,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:12,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:12,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:42:12,032 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:42:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:42:12,039 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:42:12,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:12,040 INFO L85 PathProgramCache]: Analyzing trace with hash 41192465, now seen corresponding path program 1 times [2022-10-17 10:42:12,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:12,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290565939] [2022-10-17 10:42:12,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:12,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:42:12,052 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:42:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:42:12,060 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:42:12,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:12,061 INFO L85 PathProgramCache]: Analyzing trace with hash 123261968, now seen corresponding path program 1 times [2022-10-17 10:42:12,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:12,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652030485] [2022-10-17 10:42:12,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:12,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:12,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:42:12,075 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:42:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:42:12,086 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:42:12,183 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:42:12,184 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:42:12,185 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:42:12,185 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:42:12,185 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:42:12,206 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:42:12,206 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:42:12,207 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:42:12,207 INFO L133 ssoRankerPreferences]: Filename of dumped script: counting-bits-set.i_Iteration2_Loop [2022-10-17 10:42:12,207 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:42:12,207 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:42:12,227 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:42:12,246 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:42:12,386 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:42:12,400 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:42:12,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:42:12,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:42:12,424 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:42:12,431 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:42:12,432 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:42:12,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-10-17 10:42:12,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-10-17 10:42:12,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:42:12,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:42:12,494 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:42:12,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-10-17 10:42:12,498 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:42:12,498 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:42:12,543 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:42:12,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-10-17 10:42:12,549 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:42:12,550 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:42:12,550 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:42:12,550 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:42:12,550 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:42:12,550 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:42:12,550 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:42:12,550 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:42:12,551 INFO L133 ssoRankerPreferences]: Filename of dumped script: counting-bits-set.i_Iteration2_Loop [2022-10-17 10:42:12,551 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:42:12,551 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:42:12,553 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:42:12,562 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:42:12,641 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:42:12,645 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:42:12,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:42:12,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:42:12,648 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:42:12,656 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:42:12,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:42:12,667 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:42:12,668 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:42:12,668 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:42:12,668 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:42:12,672 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:42:12,672 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:42:12,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-10-17 10:42:12,691 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:42:12,701 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:42:12,701 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-10-17 10:42:12,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:42:12,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:42:12,705 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:42:12,708 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:42:12,708 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:42:12,709 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:42:12,709 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 1*~v~0 Supporting invariants [] [2022-10-17 10:42:12,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-10-17 10:42:12,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-10-17 10:42:12,739 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:42:12,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:12,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:12,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:42:12,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:42:12,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:12,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:42:12,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:42:12,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:42:12,854 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-10-17 10:42:12,855 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:42:12,924 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 37 transitions. Complement of second has 7 states. [2022-10-17 10:42:12,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-10-17 10:42:12,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:42:12,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2022-10-17 10:42:12,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 3 letters. Loop has 5 letters. [2022-10-17 10:42:12,933 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:42:12,934 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 8 letters. Loop has 5 letters. [2022-10-17 10:42:12,935 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:42:12,935 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 3 letters. Loop has 10 letters. [2022-10-17 10:42:12,936 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:42:12,936 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 37 transitions. [2022-10-17 10:42:12,943 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-10-17 10:42:12,946 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 22 states and 29 transitions. [2022-10-17 10:42:12,946 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2022-10-17 10:42:12,947 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2022-10-17 10:42:12,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 29 transitions. [2022-10-17 10:42:12,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:42:12,948 INFO L218 hiAutomatonCegarLoop]: Abstraction has 22 states and 29 transitions. [2022-10-17 10:42:12,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 29 transitions. [2022-10-17 10:42:12,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2022-10-17 10:42:12,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:42:12,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2022-10-17 10:42:12,956 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 23 transitions. [2022-10-17 10:42:12,957 INFO L428 stractBuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2022-10-17 10:42:12,957 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-10-17 10:42:12,957 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2022-10-17 10:42:12,960 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-10-17 10:42:12,960 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:42:12,960 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:42:12,962 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-10-17 10:42:12,962 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-10-17 10:42:12,962 INFO L748 eck$LassoCheckResult]: Stem: 134#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~c~0 := 0;~z~0 := 0;~y~0 := 0; 135#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 143#L12 assume ~v~0 >= 0;~c~0 := 0; 145#L13-3 assume !!(0 != ~v~0); 140#L15 assume !(0 == ~v~0); 144#L15-2 assume !(1 == ~v~0); 128#L15-4 [2022-10-17 10:42:12,963 INFO L750 eck$LassoCheckResult]: Loop: 128#L15-4 assume 0 == ~v~0 || 1 == ~v~0;~z~0 := ~v~0; 129#L15-8 ~c~0 := ~c~0 + ~z~0; 131#L13-2 ~v~0 := ~v~0 / 2; 136#L13-3 assume !!(0 != ~v~0); 138#L15 assume !(0 == ~v~0); 141#L15-2 assume !(1 == ~v~0); 128#L15-4 [2022-10-17 10:42:12,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:12,969 INFO L85 PathProgramCache]: Analyzing trace with hash 889512752, now seen corresponding path program 1 times [2022-10-17 10:42:12,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:12,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303241126] [2022-10-17 10:42:12,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:12,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:12,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:42:12,989 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:42:12,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:42:12,995 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:42:12,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:12,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1665300183, now seen corresponding path program 1 times [2022-10-17 10:42:12,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:12,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161468609] [2022-10-17 10:42:12,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:12,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:13,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:13,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:42:13,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:42:13,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161468609] [2022-10-17 10:42:13,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161468609] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:42:13,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:42:13,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:42:13,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789523397] [2022-10-17 10:42:13,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:42:13,163 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-10-17 10:42:13,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:42:13,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:42:13,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:42:13,164 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:42:13,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:42:13,190 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2022-10-17 10:42:13,190 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 23 transitions. [2022-10-17 10:42:13,193 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-10-17 10:42:13,194 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 13 states and 14 transitions. [2022-10-17 10:42:13,194 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2022-10-17 10:42:13,195 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-10-17 10:42:13,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 14 transitions. [2022-10-17 10:42:13,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:42:13,195 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-10-17 10:42:13,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 14 transitions. [2022-10-17 10:42:13,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 10. [2022-10-17 10:42:13,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.1) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:42:13,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2022-10-17 10:42:13,201 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 11 transitions. [2022-10-17 10:42:13,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:42:13,205 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 11 transitions. [2022-10-17 10:42:13,205 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-10-17 10:42:13,205 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 11 transitions. [2022-10-17 10:42:13,207 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-10-17 10:42:13,207 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:42:13,207 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:42:13,207 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-10-17 10:42:13,208 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:42:13,208 INFO L748 eck$LassoCheckResult]: Stem: 178#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~c~0 := 0;~z~0 := 0;~y~0 := 0; 179#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 183#L12 assume ~v~0 >= 0;~c~0 := 0; 180#L13-3 [2022-10-17 10:42:13,208 INFO L750 eck$LassoCheckResult]: Loop: 180#L13-3 assume !!(0 != ~v~0); 181#L15 assume !(0 == ~v~0); 182#L15-2 assume !(1 == ~v~0); 174#L15-4 assume !(0 == ~v~0 || 1 == ~v~0); 175#L15-6 assume !(~v~0 >= 0);~z~0 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 176#L15-8 ~c~0 := ~c~0 + ~z~0; 177#L13-2 ~v~0 := ~v~0 / 2; 180#L13-3 [2022-10-17 10:42:13,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:13,210 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 3 times [2022-10-17 10:42:13,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:13,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455087897] [2022-10-17 10:42:13,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:13,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:13,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:42:13,231 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:42:13,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:42:13,250 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:42:13,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:13,251 INFO L85 PathProgramCache]: Analyzing trace with hash 932888984, now seen corresponding path program 1 times [2022-10-17 10:42:13,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:13,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106746904] [2022-10-17 10:42:13,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:13,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:13,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:42:13,268 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:42:13,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:42:13,274 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:42:13,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:13,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1802697257, now seen corresponding path program 1 times [2022-10-17 10:42:13,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:13,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478493042] [2022-10-17 10:42:13,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:13,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:13,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:13,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:42:13,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:42:13,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478493042] [2022-10-17 10:42:13,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478493042] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:42:13,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:42:13,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:42:13,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735962815] [2022-10-17 10:42:13,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:42:13,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:42:13,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:42:13,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:42:13,389 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:42:13,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:42:13,415 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2022-10-17 10:42:13,415 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 10 transitions. [2022-10-17 10:42:13,416 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-10-17 10:42:13,417 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 10 transitions. [2022-10-17 10:42:13,418 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-10-17 10:42:13,418 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-10-17 10:42:13,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 10 transitions. [2022-10-17 10:42:13,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:42:13,419 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 10 transitions. [2022-10-17 10:42:13,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 10 transitions. [2022-10-17 10:42:13,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-10-17 10:42:13,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.0) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:42:13,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2022-10-17 10:42:13,421 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 10 transitions. [2022-10-17 10:42:13,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:42:13,423 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 10 transitions. [2022-10-17 10:42:13,428 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-10-17 10:42:13,428 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 10 transitions. [2022-10-17 10:42:13,429 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-10-17 10:42:13,429 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:42:13,429 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:42:13,429 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-10-17 10:42:13,429 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:42:13,430 INFO L748 eck$LassoCheckResult]: Stem: 204#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~c~0 := 0;~z~0 := 0;~y~0 := 0; 205#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 211#L12 assume ~v~0 >= 0;~c~0 := 0; 208#L13-3 [2022-10-17 10:42:13,430 INFO L750 eck$LassoCheckResult]: Loop: 208#L13-3 assume !!(0 != ~v~0); 209#L15 assume !(0 == ~v~0); 210#L15-2 assume !(1 == ~v~0); 202#L15-4 assume !(0 == ~v~0 || 1 == ~v~0); 203#L15-6 assume ~v~0 >= 0;abs_15 := (if ~v~0 < 1 then ~v~0 else 1);assume ~v~0 >= 0;assume ~z~0 < abs_15; 206#L15-8 ~c~0 := ~c~0 + ~z~0; 207#L13-2 ~v~0 := ~v~0 / 2; 208#L13-3 [2022-10-17 10:42:13,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:13,431 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 4 times [2022-10-17 10:42:13,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:13,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278625079] [2022-10-17 10:42:13,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:13,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:13,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:42:13,444 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:42:13,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:42:13,459 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:42:13,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:13,460 INFO L85 PathProgramCache]: Analyzing trace with hash 932887062, now seen corresponding path program 1 times [2022-10-17 10:42:13,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:13,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611090403] [2022-10-17 10:42:13,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:13,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:13,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:42:13,470 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:42:13,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:42:13,478 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:42:13,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:13,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1802699179, now seen corresponding path program 1 times [2022-10-17 10:42:13,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:13,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679133084] [2022-10-17 10:42:13,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:13,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:13,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:42:13,488 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:42:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:42:13,497 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:42:13,584 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:42:13,584 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:42:13,584 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:42:13,584 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:42:13,585 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:42:13,585 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:42:13,585 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:42:13,585 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:42:13,585 INFO L133 ssoRankerPreferences]: Filename of dumped script: counting-bits-set.i_Iteration5_Loop [2022-10-17 10:42:13,585 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:42:13,585 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:42:13,588 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:42:13,601 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:42:13,797 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:42:13,797 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:42:13,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:42:13,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:42:13,799 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:42:13,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-10-17 10:42:13,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-10-17 10:42:13,845 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:42:13,845 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:42:13,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-10-17 10:42:13,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:42:13,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:42:13,890 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:42:13,891 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:42:13,892 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:42:13,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-10-17 10:42:13,976 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:42:13,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-10-17 10:42:13,984 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:42:13,985 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:42:13,985 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:42:13,985 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:42:13,985 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:42:13,985 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:42:13,985 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:42:13,985 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:42:13,985 INFO L133 ssoRankerPreferences]: Filename of dumped script: counting-bits-set.i_Iteration5_Loop [2022-10-17 10:42:13,985 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:42:13,985 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:42:13,986 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:42:14,001 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:42:14,099 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:42:14,099 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:42:14,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:42:14,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:42:14,104 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:42:14,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-10-17 10:42:14,107 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:42:14,118 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:42:14,118 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:42:14,118 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:42:14,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:42:14,119 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:42:14,121 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:42:14,121 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:42:14,130 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:42:14,133 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-10-17 10:42:14,134 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 10:42:14,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:42:14,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:42:14,135 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:42:14,141 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:42:14,141 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:42:14,141 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:42:14,142 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 1*~v~0 Supporting invariants [] [2022-10-17 10:42:14,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-10-17 10:42:14,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-10-17 10:42:14,188 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:42:14,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:14,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:14,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:42:14,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:42:14,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:14,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-17 10:42:14,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:42:14,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:42:14,380 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-10-17 10:42:14,381 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 10 transitions. cyclomatic complexity: 1 Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:42:14,420 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 10 transitions. cyclomatic complexity: 1. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 17 states and 18 transitions. Complement of second has 8 states. [2022-10-17 10:42:14,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-10-17 10:42:14,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:42:14,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2022-10-17 10:42:14,425 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 3 letters. Loop has 7 letters. [2022-10-17 10:42:14,425 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:42:14,425 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 10 letters. Loop has 7 letters. [2022-10-17 10:42:14,426 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:42:14,426 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 3 letters. Loop has 14 letters. [2022-10-17 10:42:14,426 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:42:14,427 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 18 transitions. [2022-10-17 10:42:14,428 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-10-17 10:42:14,428 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 0 states and 0 transitions. [2022-10-17 10:42:14,429 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-10-17 10:42:14,429 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-10-17 10:42:14,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-10-17 10:42:14,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:42:14,429 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:42:14,429 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:42:14,430 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:42:14,430 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-10-17 10:42:14,430 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-10-17 10:42:14,430 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-10-17 10:42:14,430 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-10-17 10:42:14,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.10 10:42:14 BoogieIcfgContainer [2022-10-17 10:42:14,443 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-10-17 10:42:14,443 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:42:14,443 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:42:14,444 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:42:14,444 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:42:11" (3/4) ... [2022-10-17 10:42:14,450 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-10-17 10:42:14,454 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:42:14,459 INFO L158 Benchmark]: Toolchain (without parser) took 3608.16ms. Allocated memory was 90.2MB in the beginning and 121.6MB in the end (delta: 31.5MB). Free memory was 63.6MB in the beginning and 72.3MB in the end (delta: -8.7MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2022-10-17 10:42:14,459 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 90.2MB. Free memory was 58.7MB in the beginning and 58.6MB in the end (delta: 51.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:42:14,460 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.66ms. Allocated memory is still 90.2MB. Free memory was 63.5MB in the beginning and 65.3MB in the end (delta: -1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 10:42:14,461 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.98ms. Allocated memory is still 90.2MB. Free memory was 65.3MB in the beginning and 64.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:42:14,461 INFO L158 Benchmark]: Boogie Preprocessor took 22.61ms. Allocated memory is still 90.2MB. Free memory was 64.0MB in the beginning and 62.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:42:14,465 INFO L158 Benchmark]: RCFGBuilder took 378.73ms. Allocated memory is still 90.2MB. Free memory was 62.9MB in the beginning and 53.7MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 10:42:14,466 INFO L158 Benchmark]: BuchiAutomizer took 2880.82ms. Allocated memory was 90.2MB in the beginning and 121.6MB in the end (delta: 31.5MB). Free memory was 53.6MB in the beginning and 72.3MB in the end (delta: -18.8MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2022-10-17 10:42:14,468 INFO L158 Benchmark]: Witness Printer took 11.26ms. Allocated memory is still 121.6MB. Free memory was 72.3MB in the beginning and 72.3MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:42:14,475 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 90.2MB. Free memory was 58.7MB in the beginning and 58.6MB in the end (delta: 51.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 273.66ms. Allocated memory is still 90.2MB. Free memory was 63.5MB in the beginning and 65.3MB in the end (delta: -1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.98ms. Allocated memory is still 90.2MB. Free memory was 65.3MB in the beginning and 64.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.61ms. Allocated memory is still 90.2MB. Free memory was 64.0MB in the beginning and 62.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 378.73ms. Allocated memory is still 90.2MB. Free memory was 62.9MB in the beginning and 53.7MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2880.82ms. Allocated memory was 90.2MB in the beginning and 121.6MB in the end (delta: 31.5MB). Free memory was 53.6MB in the beginning and 72.3MB in the end (delta: -18.8MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * Witness Printer took 11.26ms. Allocated memory is still 121.6MB. Free memory was 72.3MB in the beginning and 72.3MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (3 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function v and consists of 4 locations. One deterministic module has affine ranking function v and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.8s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 75 IncrementalHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 35 mSDtfsCounter, 75 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT2 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp58 ukn100 mio100 lsp100 div372 bol100 ite100 ukn100 eq120 hnf97 smp44 dnf100 smp100 tf108 neg98 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 62ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-10-17 10:42:14,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-10-17 10:42:14,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21255fcf-0d3f-4306-804c-6024c52cd2d7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE